I need help on an android cellphone...

Does anyone here uses &/or have an android cell phone??

Do you know how I can help my hubby out on his android cell phone on how to either avoid it or get around it with out having to add the FB Messenger, cuz. FB is not forcing me to add it on my phone, but in m hubby's cell phone its either click on more info or add messenger from google play store, & can't open up his messages on his inbox, I went to settings & un checked the facebook chat, & still nothing . Do you have any idea how to avoid adding a stupid messenger on an android phone ?, which my hubby doesn't want. The notification is unchecked too.

I tried to google for more answers, but could not find any.

Hope to hear back from you soon.

please help. Thank you in advance.